230391
硫酸镁 七水合物
ACS reagent, ≥98%
别名:
泻盐
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关于此项目
线性分子式:
MgSO4 · 7H2O
化学文摘社编号:
分子量:
246.47
PubChem Substance ID:
eCl@ss:
38030409
UNSPSC Code:
12352302
NACRES:
NA.21
EC Number:
231-298-2
MDL number:
Assay:
≥98%, 98.0-102.0% (ACS specification)
Grade:
ACS reagent
Form:
crystals
InChI key
WRUGWIBCXHJTDG-UHFFFAOYSA-L
InChI
1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
SMILES string
O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O
grade
ACS reagent
vapor density
<0.01 (vs air)
Quality Level
vapor pressure
<0.1 mmHg ( 20 °C)
assay
≥98%, 98.0-102.0% (ACS specification)
form
crystals
impurities
≤0.005% insolubles
pH
5.0-8.2 (25 °C, 5%)
anion traces
chloride (Cl-): ≤5 ppm, nitrate (NO3-): ≤0.002%
cation traces
Ca: ≤0.02%, Fe: ≤5 ppm, K: ≤0.005%, Mn: ≤5 ppm, NH4+: ≤0.002%, Na: ≤0.005%, Sr: ≤0.005%, heavy metals: ≤5 ppm (by ICP-OES)
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General description
硫酸镁七水合物是一种镁的水合盐。它通常用作有机合成中的催化剂。
Application
硫酸镁七水合物可作为路易斯酸催化剂用于合成：
NaBH4 负载在MgSO4 7H2O上可用作还原 α, β不饱和羰基化合物成相对应的醇的有效催化剂。
- 通过缩合 邻-苯二胺和1,2-二羧基化合物反应制备吩嗪和喹喔啉衍生物。
- 通过一锅法缩合芳香醛、苯偶酰、脂肪族和芳香族伯胺反应制备咪唑衍生物。
NaBH4 负载在MgSO4 7H2O上可用作还原 α, β不饱和羰基化合物成相对应的醇的有效催化剂。
wgk
WGK 1
存储类别
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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